linux-kernel - [PATCH] sched: Removed redundant set_current

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Message-Id: <1334072733-2614-1-git-send-email-sasikanth.v19@gmail.com>
Date:	Tue, 10 Apr 2012 21:15:33 +0530
From:	Sasikantha babu <sasikanth.v19@...il.com>
To:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Frank Rowand <frank.rowand@...sony.com>,
	Paul Turner <pjt@...gle.com>,
	Thomas Gleixner <tglx@...utronix.de>
Cc:	linux-kernel@...r.kernel.org,
	Sasikantha babu <sasikanth.v19@...il.com>
Subject: [PATCH] sched: Removed redundant set_current_state in "yield"

Removed redundant setting current task state to TASK_RUNNING.

During yield process will always remains in TASK_RUNNING state. 

Process state of  yielded process will not change from TASK_RUNNING, so it does not 
make sense setting the process state again to TASK_RUNNING (TASK_RUNNING -> TASK_RUNNING).

Signed-off-by: Sasikantha babu <sasikanth.v19@...il.com>
---
 kernel/sched/core.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 4603b9d..c2a357d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4624,7 +4624,6 @@ EXPORT_SYMBOL(__cond_resched_softirq);
  */
 void __sched yield(void)
 {
-	set_current_state(TASK_RUNNING);
 	sys_sched_yield();
 }
 EXPORT_SYMBOL(yield);
-- 
1.7.3.4

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